This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X120SN, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI32 Standard Air Cylinder SI32X120SN
The AirTAC SI32 Standard Air Cylinder SI32X120SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 120mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X120SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X120SN
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32X120SN
The AirTAC SI32X120SN is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 120 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X120SN, which maintains the exact same ISO 15552 mounting interface, output force, and accessories.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. This -N NBR seal operates from -20 to +70 C, and the -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X120SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X120SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X120SN |
| Bore size | Ø32 mm |
| Stroke | 120 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32X120SN carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X120SN produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32X120SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI32 Standard Air Cylinder SI32X120SN Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight machined components out of CNC fixtures.
Compact Clamping
Secures delicate electronic housings during assembly, taking advantage of the 32 mm bore and 120 mm travel.
Package Diverting
Actuates a short-stroke gate to sort small cartons on a packaging line without occupying excessive space.
Replacing the Airtac SI32 Standard Air Cylinder SI32X120SN with the SAI32X120SN
To replace the SI32X120SN, order the SAI32X120SN. Verify the ISO 15552 mounting interface, 120 mm stroke, G1/8 port, and your specific mounting accessory. The -S magnet and -N NBR seal carry over directly. For sizing, neighbouring bores like the 40 mm offer 628 N push at 0.5 MPa if you need more force. Remember, a plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, consider an external pilot check valve or the SAIL lock variant. Since the stroke is 120 mm, standard rod-bending limits apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X120SN
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32X120SN FAQ
Yes, the SI32X120SN is discontinued. The direct replacement is the SAI32X120SN. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 120 mm stroke, force, G1/8 port, and mounting interface.
This double-acting cylinder uses a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical maximum force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X120SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X120SN replacement — usually within 7-8 hours.